Support PHP 8.0+

Merge pull request #42 from meng-tian/support-php8

Support PHP 8.0+

Use soap-http-binding 0.4

• Changed to use soap-http-binding 0.4. The implication is that a Psr\Http\Message\RequestFactoryInterface and a Psr\Http\Message\StreamFactoryInterface need to be injected into Meng\AsyncSoap\Guzzle\Factory when creating a Meng\AsyncSoap\Guzzle\SoapClient instance. This helps to decouple a specific implementation of PSR-7 and clients can determine which implementation of PSR-7 they wish to use.
• Removed support for PHP versions older than 7.1

Use soap-http-binding 0.3

• Changed to use soap-http-binding 0.3
• Removed support for PHP 5.5 as it is too old

Remove deprecated filter flag

Merge pull request #29 from alexeyshockov/patch-1

Remove deprecated filter `FILTER_FLAG_SCHEME_REQUIRED`

v0.2.4

• Add support for local filesystem WSDL and other kinds of URIs - this resolves #7.
• Refactor SoapClient.

v0.2.3

Allow passing request options to Guzzle client.

v0.2.2

Fix bugs in callAsync implementation (#4)

• add check for hasResponse: if response is not received, the request exception should be rethrown.
• move response parsing from finally block and only parse response when response is safely received.
• finally block only responsible for releasing stream resources.

Improve implementation of callAsync

• use coroutine to improve readability
• parse responses even when a 5xx or 4xx is returned
• close streams after invocation is completed
• fix tests

v0.2.0

Use new version of SOAP HTTP binding to simplify this library, and also update tests and readme.

first release

Improve test suites

- split unit tests and functional tests
- add unit tests for SoapClient and Factory
- add more web services in functional test but exclude it from test
  coverage
- support non-wsdl mode